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+# Tabbed Content Without JavaScript
+
+2019-01-28
+
+Creating tabs is a fairly trivial and common practice in web design, but many times it requires JavaScript to properly implement. Fortunately it *is* possible to create tabbed content with only using CSS.
+
+![Tabbed elements with only CSS](/public/images/tabbed-content.png)
+
+[Live CodePen Example](https://codepen.io/bradleytaunt/pen/abjmayw)
+
+---
+
+<div class="message">
+<p><strong>Sidenote:</strong></p>
+<p>While this method is semantic and accessible, you might consider using a pre-existing plugin for tabbed data.</p> 
+<p>This component tends to feel a little "stiff" compared to more fleshed out variations available. This pure CSS version is better suited as a fallback for when users have disabled JavaScript.</p>
+</div>
+
+## The HTML
+
+The skeleton for this component is fairly basic - we just need the following structure:
+
+1. Parent element for each tab item
+2. Default radio input
+3. Label linked to corresponding input
+4. Inner content associated with each tab item
+
+
+    <!-- Simple main container for all elements -->
+    <div class="tabs">
+    
+        <!-- Parent container holding for individual tab item -->
+        <div class="tab-item">
+    
+            <!-- Default radio input -->
+            <input class="tab-input" type="radio" name="tabs" id="tab-1">
+    
+            <!-- Label connected to radio input via `id` and `for` attributes -->
+            <label class="tab-label" for="tab-1">Tab 1</label>
+    
+            <!-- Full inner content of current tab item -->
+            <div class="tab-content">Content goes here</div>
+    
+        </div>
+    
+    </div>
+
+
+Full HTML for reference:
+
+
+    <div class="tabs">
+    
+        <div class="tab-item">
+            <input class="tab-input" type="radio" name="tabs" id="tab-1">
+            <label class="tab-label" for="tab-1">Tab 1</label>
+            <div class="tab-content">Content goes here</div>
+        </div>
+    
+        <div class="tab-item">
+            <input class="tab-input" type="radio" name="tabs" id="tab-2">
+            <label class="tab-label" for="tab-2">Tab 2</label>
+            <div class="tab-content">Content goes here</div>
+        </div>
+    
+        <div class="tab-item">
+            <input class="tab-input" type="radio" name="tabs" id="tab-3">
+            <label class="tab-label" for="tab-3">Tab 3</label>
+            <div class="tab-content">Content goes here</div>
+        </div>
+    
+    </div>
+
+
+## The CSS
+
+First, we need to set each `input`, `label` and inner content into their own parent containers:
+
+
+    /* Main parent that holds all contents */
+    .tabs {
+        height: 100%;
+        min-height: 250px;
+        position: relative;
+    }
+    
+    /* Each tab items (includes heading & content) */
+    .tab-item {
+        display: inline;
+    }
+
+
+Next, we will hide the default `radio` input and design our labels to resemble a basic web tab element. The `z-index` property on the label is important for how we will be stacking our content on the z-axis (labels above inner content for example).
+
+
+    /* Hide the default radio inputs */
+    .tab-input {
+        position: absolute;
+        visibility: hidden;
+    }
+    
+    /* The main tab headings */
+    .tab-label {
+        background: white;
+        box-shadow: inset 0 -4px 4px rgba(0,0,0,0.02);
+        color: lightgrey;
+        cursor: pointer;
+        display: inline-block;
+        font-weight: 600;
+        margin: 0 5px 0 0;
+        padding: 10px 20px;
+        position: relative;
+        text-align: center;
+        z-index: 0;
+    }
+
+
+The main inner content of each tab needs to have an `absolute` position set as it's default, since the one currently selected will switch to `relative` on mobile (more on that in a moment):
+
+
+    /* The inner tab content */
+    .tab-content {
+        background: white;
+        bottom: 0;
+        box-shadow: 0 6px 8px rgba(0,0,0,0.02);
+        left: 0;
+        overflow: scroll;
+        padding: 20px;
+        position: absolute;
+        right: 0;
+        top: 50px;
+        z-index: 0;
+    }
+
+
+The final step is just telling the browser to style both the `label` and inner content of the currently selected radio `input`:
+
+
+    /* Style the currently selected tab label */
+    .tab-input:checked + .tab-label {
+        border: 1px solid #eee;
+        border-bottom: 0;
+        box-shadow: 0 -6px 8px rgba(0,0,0,0.02);
+        color: #268bd2;
+        z-index: 2;
+    }
+    
+    /* Show the currently selected tab content */
+    .tab-input:checked ~ .tab-content {
+        border: 1px solid #eee;
+        z-index: 1;
+    }
+
+
+It's as simple as that! For reference, here is the entire CSS file for easier access:
+
+
+    /* Main parent that holds all contents */
+    .tabs {
+        height: 100%;
+        min-height: 250px;
+        position: relative;
+    }
+    
+    /* Each tab items (includes heading & content) */
+    .tab-item {
+        display: inline;
+    }
+    
+    /* Hide the default radio inputs */
+    .tab-input {
+        position: absolute;
+        visibility: hidden;
+    }
+    
+    /* The main tab headings */
+    .tab-label {
+        background: white;
+        box-shadow: inset 0 -4px 4px rgba(0,0,0,0.02);
+        color: lightgrey;
+        cursor: pointer;
+        display: inline-block;
+        font-weight: 600;
+        margin: 0 5px 0 0;
+        padding: 10px 20px;
+        position: relative;
+        text-align: center;
+        z-index: 0;
+    }
+    
+    /* The inner tab content */
+    .tab-content {
+        background: white;
+        bottom: 0;
+        box-shadow: 0 6px 8px rgba(0,0,0,0.02);
+        left: 0;
+        overflow: scroll;
+        padding: 20px;
+        position: absolute;
+        right: 0;
+        top: 50px;
+        z-index: 0;
+    }
+    
+    /* Style the currently selected tab label */
+    .tab-input:checked + .tab-label {
+        border: 1px solid #eee;
+        border-bottom: 0;
+        box-shadow: 0 -6px 8px rgba(0,0,0,0.02);
+        color: #268bd2;
+        z-index: 2;
+    }
+    
+    /* Show the currently selected tab content */
+    .tab-input:checked ~ .tab-content {
+        border: 1px solid #eee;
+        z-index: 1;
+    }
+
+
+## Don't forget about mobile
+
+With only a few extra lines of CSS we can ensure that our custom tabs will stack on top of each other and look solid on mobile devices:
+
+
+    @media(max-width:38em) {
+        .tab-label {
+            display: block;
+            width: 100%;
+        }
+        .tab-content {
+            display: none;
+        }
+        .tab-input:checked ~ .tab-content {
+            bottom: auto;
+            display: block;
+            position: relative;
+            top: auto;
+        }
+    }
+
+
+## One minor caveat
+
+Even though I'm a pretty big fan of implementing tabs this way, there is a small drawback:
+
+The `height` of the inner content doesn't grow dynamically since it defaults as `absolute`, so a `min-height` or `height` value is required on the parent element. This could become a problem in certain situations where you don't have the luxury of setting a static height.
+
+Other than that, enjoy building some JavaScript-free tabs!